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A unique photosystem I reaction center from a chlorophyll d-containing cyanobacterium Acaryochloris marina

文献类型：期刊论文

作者Xu, Caihuang; Zhu, Qingjun1; Chen, Jing-Hua; Shen, Liangliang1; Yi, Xiaohan5; Huang, Zihui5; Wang, Wenda; Chen, Min2; Kuang, Tingyun; Shen, Jian-Ren
刊名JOURNAL OF INTEGRATIVE PLANT BIOLOGY
出版日期2021
卷号63期号:10页码:1740-1752
关键词A marina chlorophyll d cryoelectron microscopy pheophytin a photosynthesis photosystem I reaction center
ISSN号1672-9072
DOI10.1111/jipb.13113
文献子类Article
英文摘要Photosystem I (PSI) is a large protein supercomplex that catalyzes the light-dependent oxidation of plastocyanin (or cytochrome c(6)) and the reduction of ferredoxin. This catalytic reaction is realized by a transmembrane electron transfer chain consisting of primary electron donor (a special chlorophyll (Chl) pair) and electron acceptors A(0), A(1), and three Fe4S4 clusters, F-X, F-A, and F-B. Here we report the PSI structure from a Chl d-dominated cyanobacterium Acaryochloris marina at 3.3 angstrom resolution obtained by single-particle cryo-electron microscopy. The A. marina PSI exists as a trimer with three identical monomers. Surprisingly, the structure reveals a unique composition of electron transfer chain in which the primary electron acceptor A(0) is composed of two pheophytin a rather than Chl a found in any other well-known PSI structures. A novel subunit Psa27 is observed in the A. marina PSI structure. In addition, 77 Chls, 13 alpha-carotenes, two phylloquinones, three Fe-S clusters, two phosphatidyl glycerols, and one monogalactosyl-diglyceride were identified in each PSI monomer. Our results provide a structural basis for deciphering the mechanism of photosynthesis in a PSI complex with Chl d as the dominating pigments and absorbing far-red light.
学科主题Biochemistry & Molecular Biology ; Plant Sciences
出版地HOBOKEN
电子版国际标准刊号1744-7909
WOS关键词ENERGY-TRANSFER PATHWAYS ; PRIMARY ELECTRON-DONOR ; CRYO-EM STRUCTURE ; PHOTOSYNTHETIC PROKARYOTE ; PIGMENT COMPOSITION ; CHARGE SEPARATION ; STRUCTURAL BASIS ; ANTENNA ; SUPERCOMPLEX ; EVOLUTION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000665208700001
出版者WILEY
资助机构National Key R&D Program of China [2020YFA0907600, 2017YFA0503700, 2017YFA0504803, 2018YFA0507700, 2019YFA0906300] ; Strategic Priority Research Program of CAS [XDA27050402, XDB17000000] ; Chinese Academy of Sciences Key Research Program of Frontier Sciences [QYZDY-SSW-SMC003] ; Youth Innovation Promotion Association of CAS [2020081] ; CAS Interdisciplinary Innovation Team [JCTD-2020-06] ; Fundamental Research Funds for the Central Universities [2018XZZX001-13]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26367]  
专题中科院光生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China
2.Zhejiang Univ, Ctr Cryoelectron Microscopy, Sch Med, Hangzhou 310058, Peoples R China
3.Univ Sydney, Sch Life & Environm Sci, Fac Sci, Sydney, NSW 2006, Australia
4.Okayama Univ, Inst Interdisciplinary Sci, Div Photosynth & Struct Biol, Okayama 7008530, Japan
5.Zhejiang Univ, Dept Biophys, Sch Med, Sir Run Run Shaw Hosp, Hangzhou 310058, Peoples R China
6.Zhejiang Univ, Dept Pathol, Sch Med, Sir Run Run Shaw Hosp, Hangzhou 310058, Peoples R China
7.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
8.Okayama Univ, Grad Sch Nat Sci & Technol, Okayama 7008530, Japan
推荐引用方式
GB/T 7714		 Xu, Caihuang,Zhu, Qingjun,Chen, Jing-Hua,et al. A unique photosystem I reaction center from a chlorophyll d-containing cyanobacterium Acaryochloris marina[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2021,63(10):1740-1752.
APA Xu, Caihuang.,Zhu, Qingjun.,Chen, Jing-Hua.,Shen, Liangliang.,Yi, Xiaohan.,...&Han, Guangye.(2021).A unique photosystem I reaction center from a chlorophyll d-containing cyanobacterium Acaryochloris marina.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,63(10),1740-1752.
MLA Xu, Caihuang,et al."A unique photosystem I reaction center from a chlorophyll d-containing cyanobacterium Acaryochloris marina".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 63.10(2021):1740-1752.

入库方式： OAI收割

来源：植物研究所

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